Heel-trimming machine



(No Model.)

3 Sheets-Shet 1. C. W; GLIDDEN. HEEL TRIMMING MACHINE.

Patented Aug. 27 1889.

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(No Model.) 3 Sheetsf-Sheet 2.

C. W. GLIDDEN.

HEEL TRIMMING MACHINE.

No. 410,000. l Patented Aug. 27 1880.

WHUEEEEE: inventar. l "AfMQ-QHfd/M @M266 N. paens mMnhw-ww. Mmmm DJ;

` 3 sheets-sheet s.

(No Model.)

c. W. GLIDDBN. HEEL TRIMMING MACHINE.

Patented Aug. `27 1889l W'IQEEEEQE, lqw/Eq 0 32% A/LM/f/ afm/Tae@ ma@ M @M 776% pattern-plate of the jack mechanism is rogitudinal movement of the cutter with its c in in the arc of a vertical circle, to thus ena- `the accompanying drawings, is a specificainto trimming position under the rotating UNITED STATES PATENT OFFICE.'

CHARLES IV. GLIDDEN, OF LYNN, ASSIGNOR TO JAMES W. BROOKS, TRSTEE,

OF CAMBRIDGE, MASSACHUSETTS.

HEEL-TRIMMING MACHINE.

SPECIFICATION forming` part of Letters Patent No. 410,090, dated August 27, 1889.

Application filed May 28, 1888. Renewed March 13, 1889. Serial No. 303,191. (No model.)

.To all whom t 'may concern: i

Be it known that I, CHARLES W. GLIDDEN, of Lynn, in the county of Essex and State of Massachusetts, have invented an Improvement in Heel-Trimming Machines, of which the following description, in connection with tion, like letters on the drawings representing like parts.

This invention has for its .object the production of a novel heel-trimming mechanism. In mylinvention herein contained the heel tated automatically to rotate the heel while being presented. to and acted upon by the blades of a rotating molded cutter, and during the rotation of the heel pattern-plate and heel a pivoted frame carrying the rotating molded `cutter is, through the action of a pattern-cam, moved to cause the said cutter when `acting' upon the sides of the heel to travel longitudinally in the direction of Athe length of the heel measured from its rear part to its breast and at right angles to the center of rotation of the heel pattern plate. The patterncam referred to is of such shape that this lonframe is suspended, or substantially so, while the cutter is acting upon the rear part of the heel, it being understood that the heel is always in motion through the heel patternplate, to which it is clamped, while the. cutter acts to trim the heel, the cutter when trimming and shaping the rear side of the heel having only a motion of rotation.

In this my improved machine the shaft carryingthe heel pattern-plate rotates in fixed bearings of a jack, the said jack being preferably a twin or double jack, the head of the jack being free to rotate at proper times about the substantially vertical axis of a jack-spindle, so that either half of the jack, with a shoe clamped therein, maybe brought molded cutter. The spindle supporting the head of the jack is pivoted to swing out and ble it to be swung forward and backward away from the molded cutter to permit the rotationot the jack. The molded cutter reswungaway from the cutter.

, ferred to is attached to one end of a short cutter-shaft provided with a pattern-guide, the said shaft having its bearings in an irregular-shaped tipping frame mounted upon a rocking frame, sovas to enable the cutter to rise and fall, the rocking frame in turn being pivoted on a swinging frame, The tipping frame is mounted on the said rocking frame to move or tip in a circular path about a center or axis of motion at rightA angles to the` center of motion of the said rocking frame and of rotation of the shaft carrying the heeltrimming cutter, the axis or center of motion about which the said tipping frame moves to adapt the heel-trimming cutter to the'varying angle or inclination of the exterior ofthe heel always remaining in line with the contact-point between the usual pattern-guide and the usual heel pattern or plate at the tread end of the heel, this tipping frame being an essentialfeature of my invention.

I have provi-ded the machine herein to be described with an automatically-operating device by which to arrest the rotation of the heel pattern-plate-on the completion of the trimming of a heel, said mechanism, as illustrated in the present embodiment of my invention, being arranged to first stop and thereafter reverse or turn theheel-.pattern plate Vback into its starting position. As the trimming is completed, the arm carrying the cutter-shaft is automatically lifted, to thus avoid in jury to* the heel by the cutter, the lifting of the cutter also permitting the jack to be My invention in heel-trimming machines consists, essentially, in the combination of the following instrumentalities, viz: a jack, a

partially-rotating heel pattern-plate, a rocking frame, means to support it, a rotating cutter-carrying shaft, a heel-trimming cutter, and a pattern-guide carried by the said shaft,

combined with a tipping frame having bear-A ings for the said shaft and means tosupport the said tipping frame on .the said rocking fram e, whereby the saidtipping frame is free to move in a circular path about a center or axis of motion at' right angles to the axis of rotation of the cutter-carrying shaft, the center or axis of `motionabout which the said roo tipping frame moves to adapt the heel-trimming cutter to the varying angle or inclination of the exterior of the heel always remaining in line with the contact-point between the usual pattern-guide and the usual heel pattern or plate at the tread end of the heel.

With the above l have combined a rand or counter guard and also a rotating rand-cutter.

My invention also consists in a jack to support the shoe the heel of which is to be trimmed, a rot-ating cutter, a shaft, a swingframe, and means between the said swingframe and shaft to support the latter, combined with a pattern-cam to move the swingframe intermittingly to cause the cutter to move horizontally in its rotation while the sides of the heel are being trimmed, as will be described; also, in the combination, with a tipping frame and a carriage having an attached rand or counterguard, of a connection between the said frame and carriage to operate the latter, as will be described; also, in a heel-trimming machine, a rotating cutter, its shaft, and frame to support the shaft, combined with a double or twin jack, the head of the jack rotating upon a vertical axis, while the foot of the jack is free to tip toward and from the cutter upon a horizontal axis.

Other features of my invention will be hereinafter described, and pointed out in the claims at the end of this specification.

Figure l is a front elevation .partially broken out, of a heel-trimming mechanism embodying my invention; Fig. la, a detail to be referred to, showing the heel pattern-plate and pattern-guide, Fig. 1b, different views of the carrier in which rotates the shaft of the randcutter; Fig. 2, a right-hand end elevation of Fig. l, the upper part of the wind-trunk being broken off. Figs. 3, 4, and 5 are enlarged details showing some of the devices employed to move the swinging frame forward and backward; Fig. 6, a sectional detail of the upper end of the swinging frame, showing the shaft therein, which by suitable belts actuates both the rotary molded cutter and the rand-cutter, the said igure in sectionalso showing the hub of the rocking frame which carries the pivot pin or stud, constituting a center of motion about which moves the tipping frame carrying the cutter-shaft. Fig. 7 is a partial plan view of the rear end of the rocking frame. Fig. 8 is an enlarged detail of devices joined to an arm of the rocking frame and of devices employed to stop and start the pattern-cam; and Fig. 9 is an enlarged front elevation of the upper part of the machine, the jack being partially broken away, together with some of the other parts of the machine. Fig. l0 is a f ront elevation showing the rand-trimming cutter and the carriage, together with the rand-trimming cutter and its shaft therein.

The wind-trunk A, rising from a blower @ase or shell A and having secured to it stands or feet A2, constitutes vpractically the main frame-work of the machine, the said stands or feet supporting bearings for the main shaft A3, (shown broken off at the left of Fig. 1,) the said shaft being driven in any usual manner.

A bracket A4, suitably bolted to or forming part of the blower-"case, has ears A5, in which, as herein shown, are arranged point-ed studs A, which constitute pivot-bearings for the foot of a jack-spindle A8, the said jackspindle having mounted upon it a jack B, herein shown as having oppositely-extending arms B', to thus form what is called a twin jack, or a jack with double capacity, one arm of the jack being shown as broken off in Fig. l, the part so Vbroken offat the right being supposed to be the same as fully illustrated at the left in said figure. The jack referred to is free to be rotated upon-a suitable vertical pin, as B3, (shown by dotted lines in Fig. 2,) and (3o-operating with the said jack and spindle are suitable locking devices, as B4, (see Fig. 2,) herein represented as springactuated bolts carried by the jack and adapted to enter holes in `a flanged part B5 of the spindle.

The central standard of the jack has at its upper end a bearing `for the reception of two short shafts, as a, Eeach provided with a gear as a', eachshaft having also attached to it a heel pattern-plate, as a2, (see Figs. l and 1%) of the shape of the ytread of the heel io be trimmed, the said heel being herein marked h and the shoe h', a suitable clamping rod or spindle a3 acting within the shoe in any usual manner to enable the thread of the heel to be forced snugly against the pattern-plate a2. The heel pattern-plate, mounted as described, has, it will be noticed, onlya motion of rotation. rlhe gear a on the shaft a, when the jack is in position to `have the cutter act and trim the heel, is engaged byan intermediate gear a4 on a short stud a5, held in ixed position by `a suitable nut a, the said gear having connected to it one end of a spiral spring a7, (see 1,) while the opposite end of the said spring is fixed with relation to the framework, the said spring restoring the said intermediate gear a4 to its normal position whenever the small gear a of the .jack is disengaged from it, as will be described. The stud a5, referred to, enters and is heldin a bearing or ear forlning a part of the windtrunk A,or in any other iixed part of the frame. The intermediate gear a4, referred to,

is engaged or rotated by a gear a8, fast on a4 shaft 2, (see Figs. 3 and 5,) having a bearing al", iiXed to the wind-trunk or other rigid part of the frame-work. The shaft 2, (see Figs. 3 and 5 on a larger scale,) has secured toit near its outer end a worm-gear b, the hub of which is shaped to form a cam b2, the front face of the said worm-gear having adj ustably attached to it by a screw a slide-block bx,

rmade adjustable diametrically across the face of the said worm-gear, the said slide-block IOO IIO

having a roller or other stud b4, which enters a cam-shaped groove in the pattern-cam b5, the said pattern-cam being herein shown as forming part of a plate be, (see Fig. 2,) bolted vor otherwise secured rigidly to a link 19T,

jointed at 58 by a suitable pin or connection to the swinging frame C, composed,essentially,

of two upright arms connected by a pipe-like` the said shaft having upon ita belt-pulley c4,

which receives .upon it a belt c5, (seeFig. 2,) extended over a belt-pulley c6, (see Fig. 1,) fast on the main shaft A3.

The swinging frame C at its upper end has suitable bearings, preferably split and held together by grip-screws CZ, the said bearings receiving in them tubular bushings CZ', (see Fig. 6,) on which turns the rocking frame D, it having an overhanging arm D and an arm D1, the frame having a suitable space D3 for the pulley cl2 to drive the. belt dx for rotating the molded or heel-'trimming cutter, as will be described, the said pulleybeing fast on ashaft cl3, having its bearings in the said bushings and provided with a beltfpulley, as d4, which receives on it the belt d5, driven by the belt-` pulley d, fast on the main shaft A3, the said shaft d3 also having fast on it a belt or cord pulley di, which on itsrotation actuates a suitable belt cls, (see Fig. 1,) which is extended over a pulley C19, fast on the shaft d10, carrying the-rand-cutter 0112, the said shaft d10 having its bearings in a carriage (Z13, having at its opposite side rolls or studs e114, which enter guiding-slots d15 in a guide-plate 0116, having two parallel and like arms, the said guide-plate being adjustably attached by a set-.n ut d17on a stud dw of a block d, made adjustible horizontally on a guide portion d20 'of the arm D.

The rand-trimming cutter d Will preferably form an integral part of' the shaft d10. In Fig. 9, where the rand-trimming cutter and one ofthe blades of the heel-trimming cutter and the usual head to which it is attached is broken out, it will be seen that the shaft e3, to which the head of the heel-trimming cutteris attached, terminates substantiall y at the outer` end of the said cutter. The blades 25 of the heel-trimming cutter extend into and through the slots or spaces in the rand-trimming cutter, thus preventing the formation of any iin, as described, at the heel-seat end of the heel, as will be understood. The shafts carrying the heel-trimming cutter and the rand-trimming cutter are actuated independently of each other, and are entirelydisconnected one from the other, but for a considerable time during the trimming operation are substantially in line. The block dm is made adjustable horizontally by a `screw (Z22 to place the` rand-cutter in proper position with relation to the molded cutter according to the thickness of the heel.

The carriage (113 has at each side a roller or other stud e, which enters a slot, as e', on an arm e2, securely bolted to the front end of a tipping'frame E of irregular shape, (shown best in Figs. land 2,) the said head having i at its front end a yoke portion which contains `bearings for thel shaft e3 of the rotary molded cutter, the said cutter having blades 25 of` a shape suitable to give to the heel the desired shape.

l The cutter-shaft at the tread end of the molded cutter has loose upon it a patternguide, as 24, (see Fig. 2,) of usual construction, against which bears the heel patternplate a2, before referred to, of the jack mechanism `as the shaft a is rotated, as described.

The shaft e3 has on it a pulley e4, which receives the belt dx, before described. V

The frame E, called the tipping frame, is

mounted to move in a circular path about an.

axis or center of motion represented by the pin or stud 26, held in the rocking frame D (see' full lines, Fig. 6, and dottedlines, Fig. l and extended therefrom at right angles to the axis of motion of the said rocking frame, so that the axis or center of motion about which the said tipping frame tips to tip the` shaft 'c3 and the molded cutter as the exterior of 'the heel is being trimmed is always kept directly in line with the contact-point of the heel pattern-plate with the pattern; guide,

such location of the pin or stud 26 enabling the tread end of the blades of the molded cut- -ter in all positions' of the heel to trim the lat` ter fully to the pattern-plate, and yyet the blades will not touch the pattern-plate to b e dulled. During the movement of thetipping frame E about its center or axis of motion` the slotted arm or connection e? acts on the carriage to move it nearly vertical, such movement of the carriage, ittaking place as the" roo shaft c3 of the cutteris tipped in the direci` tion of its length, causing the lip of the rand or counter guard w, attached to the said carriage to uncover more or less of the edges of the blades 25 of the heel-trimming cutter, the lip of the rand or counter guard remaining,

however, in the rand-crease and at the same relative distance from the cutting-edgesof the blades of the molded cutter.

The drawings, Figs. l and 2, show the parts drawn bodily to the left, taking with it t-heA swinging frame C and its attached part-s, the molded cutter during such movement acting to trim the heel from the breast along the side of the heel, the said frame not, however, l oe-\` ing moved laterally, as described, while the l saidpin was traveling in the `upper and sub?" ,stantially circularpart of the cam-slot'of the `pattern-plate, for at such time, and as shown Y heel.

in Fig. 2, the rotary molded cutter is trimming the approximately-circular part of the Starting from the vposition Fig. 2, the roller b4 so long as it travels over to the vright in the Substantially-circular part of the slot of the pattern-cam the latter will not be,

moved; but assoon Aas the approximately-circular part of the heel has'been trimmed the said roll b4 passes from the substantiallycircular portion of the slot in the pattern-cam and again begins to move the said patterncam and swinging frame to the left, during which time the molded cutter trims the sece Vhile they ond straight side ofthe heel. molded cutter is acting to trim the approximately-circular or rear part ofthe heel the4 pattern-cam is restrained from longitudinal movement by a locking device, to be described.

The wind-trunk or other rigid part lof the frame has on it a stud 28, (see Figs. 2 and 4,) on which is pivoted a lever 29, havin gba toe 30,

which rests on the cam b2, before described,

the said stud having also mounted on it a locking-pawl 31, having a toe to enter a notch in the link 197, carrying the pattern-plate, the

said pawl being kept in locking engagement with'the ksaid link so long as the toe30 ofthe lever 29 rests on the high point of the cam b2, as in Fig. 4, this being the condition while the approximately-circular part of the heel is lbeing trimmed; but when the toe 30 rests against the portions of the cam b2 o f least radius, then the locking-pawl is released to en able theslide to be moved freely. y

In another application, Serial No. 275,363,

tiled by me on the 28th day of May, 1888, I have shown a jack which is moved longitudi-V nally under the cutter while the straight side of the heel is being trimmed; but herein it will be seen that the jack while the straight side of the heel is being trimmed remains ,sta-

tionary,pand the cutter-.shaft and molded cutterare moved longitudinally to cause the cutter, in addition toits rotation, to travel bodily along the sides of the heel. ing ,trimmed the heel to the breast and the movement of the heel having been stopped,

the cutter must be removed quickly fromcon- I To do this, the arm D4 of tact with the heel. n the rocking frame D has jointed to it by a pin h an adjustable or two-part link or connecting-rod k12, the lower end of which is slotted and iits looseljT a vguiding-stud h2, projecting `from the Wind-'trunk or other rigid part of rthe The stud h2 receives on. it a lifting-v frame. cam h3, having a hand-piece 33, theA shape vof the acting portion o f the groove of the said cam being best shown by dotted lines in Fig.

2, the said groove receiving in ita roller or other stud 34, attached to the link 7112, s o that when vthe said cam h3 is turned in direction of the arrow shown in Fig. 2 the said link will,

be lifted to lift the rockerframe. This move,- ment of `the camh3 to raise the rocking frame is effected automatically by a spring 36, attached to a suitable stud on the wind-trunk The `cutter hav- A or frame, but not, however, until after the said cam h3 has been released.

'l he shan k ot' the pattern-plate has extended from it a pin or projection 38, andthe bracket yc2 has also a pin or projection 39, .which rests on a lug 40 of a lever 4l, pivoted at 42.` The lug 40 in the position Figs. 2, 4, and 5 Aholds up the bracket c2, so that the worm c engages the Worm-gear. b; but as the pattern-cam reaches the extremity of its throw to the left the projection 38 meets the lever41 andmoves the lug 40 from under the projection 39, which permits the bracket c2 to turn and free the worm f rom driving engagement with the worm-gear b. At the same time the lever 41 byits'short arm engages a collar or projection on a spring-pin 43, removing the end of the said spring-pin from engagement with a locking-plate 45, attached tothe cam h3, and permits the spring 36 to operate. The worm c having been released, the operator takes in his hand the jack B and pulls the same laterally against the spring 5,0, in orderto place v,the spindle in such position thatthe jack may be rotated. In moving the jack out- Ywardly the gear a is removed from engagement with the gear a4, and the spring d5, before described, then acts to turn the said gear Aand the worm land crank-pin b4 back into .their normal position, the said crank-pin during such operation traveling in vthe patternplate and pushing the swing-frame C fully to the right. The cam h3 is also provided with .a stud 46, having a roll 47, (see Fig. 8,) which,

after a new shoe has been applied to the jack Vand the handle 33 depressed to turn the cam h3 and permit'the rocking frame to fully descend to enable the cutter to trim the heel, strikes the lower end of a slide-rod 48 and lifts it, thus lifting the bracket c2 and placing the worm cin engagement with the wormgear b to commence the rotation of the heel.

In practice the upper end of the wind-trunk will have an inlet arranged close to the molded cutter to carry away the chips, dust, (Src.

Many heel-trimming machines employ a rand or counter guard without a separate rand-cutter, and,V if desired, the rand-cutter may be omitted; but for the best results and the more perfect trimming of the heel to avoid any possible iin next the counter orheel portion of the upper I prefer to employ a randcutter.

I claiml. In a heel-trimming machine, lthe following instrumentalities, viz: a jack, a partiallyrotating heel pattern-plate, a rocking frame, means to support it, a rotating cutter-carrying shaft, a heel-trimming cutter, and a pattern-guide carried by the said shaft, combined with a tipping frame having bearings for the said shaft and means to support the said tipping frame on vthe said rocking frame, whereby the said tipping frame is free to move in a' circular path about a center or axis -of motion at right angles to the axis of motion of IOO the rocking frame, the center or axis of motion about which the said tipping frame moves to adapt the heel-trimmin g cutter tothe varying angle or inclination of the exterior of .the heel always remaining in line with the contact-point between the usual pattern-guide and the usual heel pattern or plate at the tread `end of the heel, substantially as described.

2. In a heel-trimrning machine, a jack to hold the shoe the heel of whichl is to be trimmed, a partially-rotating heel patternplate, a rocking frame, means to support it, a rotating cutter-carrying shaft, a heel-trimming cutter, a pattern-guide carried by the said shaft, and a tipping frame having bearings for the said shaft, and means to support the said tipping frame on the said rocking frame, whereby the said tipping frame is free to move in a circular path about a center or axis of motion at right angles to the axis of motion of the rocking frame and at right angles to the center or axis of motion to the cutter-shaft, combined with a carriage having a randor counter guard, substantially as described.

3. In a heel-trimming machine, ajack to hold the shoe the heel of which is to be trimmed, a partially-rotating heel patternplate, a rocking frame, means to surport it, a rotating cutter-carrying shaft, a heel-trimming cutter, a pattern-guide carriedby thesaid shaft, and a tipping frame having bearings for the said shaft, and means to support the said tipping frame on the said rocking frame, whereby7 the said tipping frame is free to move in a circular path about a center or axis of motion at right angles to the axis of motion of the rocking frame and at right angles to the center or axis of motion to the cutter-shaft, combined with a carriage having a rand or counter guard and a rotating randcutter, to operate substantially as described.

4. In a heel-trimming machine, a jack to .support the shoe the heel of which is to be trimmed, a rotating heel-trimming cutter, its shaft, and frame to support it, a swing-frame pivoted to swing at right angles to the axis of rotation to the cutter-shaft, and means between and connecting the said swing-frame, and means for supporting the said rotating shaft, combined with a pattern-cam to move the saidswing-frame intermittingly to cause the heel-trimming cutter to be moved horizontally during its rotation to trim the sides of the heel, substantially as described.

5. In a heel-trimming machine, a jack, a

Y heel pattern-plate, means to partially rotate hold the pattern-cam in position while the approximately-circular portion of the heel is being trimmed, substantially as described.

6. In a heel-trimming machine, the rotating cutter, its shaft, and a tipping frame in which the said shaft has its bearings, (the axis or center of movement of the said frame being substantiallyat right angles to the axis of rotation of the shaft carrying the said cutter,) combined with the rand or counter guard and a car` riage to which it is attached, and with connections between the said tipping frame and the said carriage, whereby the tipping frame in its movements simultaneously moves` the said carriage and the rand or counter guard to uncover more or less ofthe cutting-edges f the blades of the said rotating cutter, substantially as described. a y

7. In a Vheel-trimming machine, the heel- Ytrimming cutter, its shaft,`the tippingframe,

in which the said shaft has its bearings, and means to support the said tipping frame, whereby it may move inacircular path about an axis or a center substantially at right angles to the shaft carrying the said cutter, combined with a carriage, an attached rand or counter guard, a rotating shaft mounted in the said carriage, a rand-cutter connected to the said shaft, and with connections between the said tipping frame and the said carriage, i whereby the tipping frame in its movements simultaneously moves the said carriage and its attached parts, enabling the counter-guard to uncover more or less of the cutting-edges of the blades of the rotating heel-trimming cutter, substantially as described.

8. In a heel-trimming machine, the tipping frame, the rotating heel-trimming cutter, its shaft supported in the said tipping frame, the rocking frame upon which the tipping frame is mounted to move about an axis or center at i right angles to that about which the rocking frame moves, and the guide portion d20, connected to the said rocking frame, combined with a block and guide-plates, as (116, adjustably connected thereto, a carriage mounted in the said guide-plates, ya rand or counter guard attached to the said carriage, and connections between said tipping frame and carriage, to operate substantially as described.V

9. Ina heel-trimming machine, a rotating cutter, a swing-frame C, and the pattern-cam in operative connection therewith, combined IIO with a roll or stud b4 entering the groove in y the said cam, and with means to actuate the said roll, substantially as described.

10. In a heel-trimming machine, a trimming-cutter, the swing-,frame C, and the y to rise and fall in unison with the said rockw ing frame, combined with a link and a cam to actuate the same to turn the said rocking frame and remove the cutter from contact With the heel being trimmed, substantially as described.

13. In a heel-trimming machine, a trimming-cutter, the rocking frame, its attached link, and a cam to move the said link and turn the said frame about its center of motion, combined with the holding-plate, as 45, a locking-pin, and a lookin g device, and means to release the said locking device and to move the said cam automatically, substantially as described.

14. In a heel-trimming machine having a rotating heel trimming cutter, a pivoted double or twin jack, a pattern-plate against which to hold the tread of the heel being trimmed, and gears a", combined with a gear, as a, and means to rotate it, the movement of the said jack in one direction effecting the disengagement of the gear a from the gear a4 and in the opposite direction effect-ing the engagement of the said gears, substantial-ly as described.

l5. In a heel-trimming machine, a rotating heel-trimming cutter and a tipping frame, combined with a carriage and its attached rand or counter guard, and with the connection between the said frame and carriage, to operate it substantially as described.

16. In a heel-trimming machine, a rotating heel-trimming cutter and a tipping frame, combined with a carriage and its attached rand or counter guard, and with the connection between the said frame and carriage to operate it, and with a rotating rand-cutter supported by the said carriage, substantially as described.

17. In a heel-trimming machine, a rotating cutter, its shaft, and a frame to support the shaft, combined with a double or twin jack,

the head of the jack rotating upon a vertical axis, while the foot of the jack is free to tip toward and from the cutter upon a horizontal axis, substantially as described.

18. In a heel-trimming machine, a jack, a heel pattern-plate carried thereby, its shaft, and attached gear a', combined with an independent gear d4, mounted upon a stud fixed to the frame, the said gear, when the jack is put into trimming position, being engaged by a gear a on the shaft of the heel patternplate, thus rotating the latter, the two gears being disengaged when the jack is swung out of trimming position, substantially as described.

19. In a heel-trimming machine, a rotating cutter, the swing-frame C, and its hollow bushings d', combined with the rocking frame D and the rotating shaft d3, to operate substantially as described.

20. In a heel-trimming machine, the combination, with a rotary cutter, pattern-cam,

and gearing for operating it, of means, substantially as described, for engaging the said gearing automatically as the molded cutter is placed in position to start the trimming of a heel, substantially as described.

2l. In a heel-trimming machine, a swingframe to impart horizontal movement to the cutter-carrying shaft while the same is being rotated to trim the side of the heel, a jack, a heel pattern-plate, its shaft mounted in the said jack, a gear on the said shaft, and an intermediate gear, as d4, t0 rotate the shaft carrying the said heel pattern-plate when the jack is in trimming position, combined with means intermediate the said gear a4 and the swing-frame to restore the latter to its normal position when the jack is moved to disengagc the gear of the shaft of the heel pattern-plate from the said gear a4, substantially as described.

In testimony whereof I have signed my name to this specification in the presen ce of two subscribing witnesses.

CHARLES W. GLIDDEN.

IVitnesses: y

GEO. W. HAMMATT, H. P. FAlRFIELD. 

